Question 1mediummultiple choice
Full question →- A
AWS X-Ray
Why wrong: Application tracing.
- B
AWS Config
Why wrong: Resource configuration history.
- C
VPC Flow Logs
Network traffic logs.
- D
AWS CloudTrail
Why wrong: API activity logs.
Question 1,075 of 1,705
Quick Answer
VPC Flow Logs is the correct choice because it captures IP traffic metadata for all network interfaces within a VPC, including traffic traversing a VPC peering connection. Unlike other monitoring tools, Flow Logs record essential details such as source and destination IP addresses, ports, protocols, and whether the traffic was accepted or rejected by security groups or network ACLs, and can publish this data to CloudWatch Logs or Amazon S3 for deep analysis. On the AWS Certified Advanced Networking Specialty ANS-C01 exam, this question tests your understanding of how VPC Flow Logs differ from services like AWS CloudTrail (which logs API calls) or VPC Traffic Mirroring (which copies full packets for deep inspection). A common trap is confusing Flow Logs with Traffic Mirroring—remember that Flow Logs provide metadata, not packet contents, making them ideal for monitoring traffic patterns between peered VPCs without the overhead of full packet capture. Memory tip: think of Flow Logs as the “metadata-only” traffic journal for your VPC peering connections.
ANS-C01 Network Design Practice Question
This ANS-C01 practice question tests your understanding of network design. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company wants to monitor network traffic between two VPCs that are peered. Which AWS feature can capture IP traffic information for analysis?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
VPC Flow Logs
VPC Flow Logs capture IP traffic information for network interfaces in a VPC, including traffic between peered VPCs. They log metadata such as source/destination IPs, ports, protocols, and packet accept/reject decisions, which can be published to CloudWatch Logs or Amazon S3 for analysis. This makes them the correct choice for monitoring network traffic between two peered VPCs.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS X-Ray
Why it's wrong here
Application tracing.
- ✗
AWS Config
Why it's wrong here
Resource configuration history.
- ✓
VPC Flow Logs
Why this is correct
Network traffic logs.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS CloudTrail
Why it's wrong here
API activity logs.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse AWS CloudTrail (which logs API calls) with VPC Flow Logs (which logs network traffic), leading them to select CloudTrail when the question specifically asks about IP traffic information for analysis.
Detailed technical explanation
How to think about this question
VPC Flow Logs capture flow records based on the 5-tuple (source IP, destination IP, source port, destination port, protocol) and use an aggregation interval of up to 10 minutes (or 1 minute with enhanced visibility). They can be enabled at the VPC, subnet, or network interface level, and for peered VPCs, flow logs must be enabled in both VPCs to see traffic in both directions. A common real-world scenario is troubleshooting asymmetric routing or security group rule effectiveness across a VPC peering connection.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Network Design — study guide chapter
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FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Design — This question tests Network Design — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: VPC Flow Logs — VPC Flow Logs capture IP traffic information for network interfaces in a VPC, including traffic between peered VPCs. They log metadata such as source/destination IPs, ports, protocols, and packet accept/reject decisions, which can be published to CloudWatch Logs or Amazon S3 for analysis. This makes them the correct choice for monitoring network traffic between two peered VPCs.
What should I do if I get this ANS-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This ANS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the ANS-C01 exam.
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